Five main causes of engine wear caused by the most

  • Detail

Five major causes of engine wear caused by neglected lubrication dead angle Abstract: many car owners think that as long as the car is lubricated, everything will be fine, but they do not know that in some places, it is impossible to do it alone

many car owners think that as long as the car is lubricated, everything will be fine. However, they do not know that in some places, it is impossible to rely on lubricants alone

I. corrosion and wear

after the fuel is burned in the engine combustion chamber, many harmful substances will be produced. Generally, pounds of nitrogen and sulfuric acid will be produced when every 100 gallons of gasoline is burned. These substances will not only cause corrosion to the cylinder, but also channeled into the engine through three piston rings (top, middle and bottom rings), causing metal corrosion to the main components of the engine, such as cams and crankshafts, This kind of corrosion cannot be eliminated by using lubricating oil alone

II. Corrosion and wear

after the engine is shut down, the index data temperature can be directly read after cooling from high temperature to low temperature. This temperature change process will cause water-cooled condensate and even water accumulation in the engine. This will cause serious metal corrosion to the engine, especially when the engine is started again and the sample is manually clamped for a short distance, and the engine temperature is too late to evaporate the water vapor, the situation is even worse. This can not be solved by lubricating oil

III. strong wear caused by dust

the engine needs to inhale air during combustion. Even the best air filter can hardly absolutely prevent dust from being sucked into the engine with the air. The dust is inhaled to cause strong wear, which cannot be completely eliminated by lubricating oil. Especially in the areas with drought, little rain and large sand storms, this kind of strong wear is more prominent

IV. cold start dry friction

the research of General Motors shows that when the automobile engine stops for 4 hours, all the lubricating oil on the friction interface will return to the lubricating oil tank. At this time, start the engine. Since the oil pump is too late to pump the lubricating oil to all lubricating parts, periodic dry friction will occur in a short time, resulting in serious abnormal strong wear of the engine. This kind of strong wear cannot be solved by lubricating oil

v. normal wear and tear

we know that the locking structure of machinery includes: wear and tear caused by normal operation of engines such as Chevron, inclined plane, eccentric wheel and lever. After understanding the causes of engine wear, it is clear that the role of lubricating oil in reducing engine wear under given external stress conditions. At the same time, it is clear that the use of anti-wear protection products is important to prolong the service life of the engine and maintain the engine

to avoid the above problems, in addition to frequent observation and inspection, timely discovery and troubleshooting of faults, the engine should also be regularly maintained to keep the machine in good technical condition. In this regard, various maintenance products with excellent comprehensive performance have also emerged. However, excessive selection and use of a variety of additives not only increase the burden of the machine, but also have adverse effects if they are not used properly. Therefore, the development of a product that is both effective in anti-wear and can protect the engine for a long time has become the top priority of many enterprises

it is not easy to develop a good lubricant additive. Different additives have synergistic effects, which may be positive or negative. Therefore, the development of a good automobile maintenance product requires a full understanding of the performance of various basic additives and a large number of laboratory and road vehicle experiments

at present, the domestic application of graphene materials is in the extension area of graphene, and the demand for automotive aftermarket is growing, with automotive lubricating oil bearing the brunt. In the experiment of exploring the application of graphene, scientists found that after adding graphene to the lubricating oil, the adsorption of a layer of graphene on the metal contact surface will greatly reduce its friction coefficient and wear rate, the surface hardness of the metal will greatly increase, and it is not easy to be corroded by nitric acid, sulfuric acid and other chemical solutions, which can effectively prevent it from rusting. With the relative movement between the contact surfaces, graphene will be uniformly and firmly attached to the whole contact surface, making the lubrication effect better

Copyright © 2011 JIN SHI